Inventor · disambiguated record
Douglas A. Welch
Also filed as: WELCH DOUGLAS · WELCH DOUGLAS A
8 granted patents·401 citations·filing 1988–2006
90Inventor score
Top patents by PatentIndex Score
8 records- 0192US5476363AMethod and apparatus for reducing stress on the tips of turbine or compressor bladesSOHL CHARLES E·Filed 1993·Granted Dec 19, 1995·131 cites·42 claims
- 0278US6846159B2Chamfered attachment for a bladed rotorUNITED TECHNOLOGIES CORP·Filed 2002·Granted Jan 25, 2005·33 cites·42 claims
- 0378US6059524APenetration resistant fan casing for a turbine engineUNITED TECHNOLOGIES CORP·Filed 1998·Granted May 9, 2000·72 cites·25 claims
- 0474US6146099AFrangible fan bladeUNITED TECHNOLOGIES CORP·Filed 1998·Granted Nov 14, 2000·55 cites·2 claims
- 0567US7517184B2Low deflection fan case cotainment fabricUNITED TECHNOLOGIES CORP·Filed 2006·Granted Apr 14, 2009·13 cites·12 claims
- 0666US5836744AFrangible fan bladeUNITED TECHNOLOGIES CORP·Filed 1997·Granted Nov 17, 1998·42 cites·10 claims
- 0757US6048174AImpact resistant hollow airfoilsUNITED TECHNOLOGIES CORP·Filed 1997·Granted Apr 11, 2000·36 cites·8 claims
- 0857US4873718AFeature telephone integration deviceOCTEL COMMUNICATIONS CORP·Filed 1988·Granted Oct 10, 1989·19 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →